js-env: done (#132)

Signed-off-by: Alessandro De Blasis <[email protected]>

Author: deblasis

content/blog/2017-09-26-react-v16.0.md

@@ -178,7 +178,7 @@ React 16 includes a number of small breaking changes. These only affect uncommon
     * `react-dom/dist/react-dom.js` → `react-dom/umd/react-dom.development.js`
     * `react-dom/dist/react-dom.min`.js → `react-dom/umd/react-dom.production.min.js`
 
-## JavaScript Environment Requirements {#javascript-environment-requirements}
+## Requisiti Ambiente JavaScript {#javascript-environment-requirements}
 
 React 16 depends on the collection types [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) and [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set). If you support older browsers and devices which may not yet provide these natively (e.g. IE < 11), consider including a global polyfill in your bundled application, such as [core-js](https://github.com/zloirock/core-js) or [babel-polyfill](https://babeljs.io/docs/usage/polyfill/).
 

content/docs/nav.yml

@@ -101,7 +101,7 @@
     - id: test-renderer
       title: Test Renderer
     - id: javascript-environment-requirements
-      title: JS Environment Requirements
+      title: Requisiti Ambiente JS
     - id: glossary
       title: Glossary
 - title: Hooks (New)

content/docs/reference-javascript-environment-requirements.md

@@ -1,14 +1,14 @@
 ---
 id: javascript-environment-requirements
-title: JavaScript Environment Requirements
+title: Requisiti Ambiente JavaScript
 layout: docs
 category: Reference
 permalink: docs/javascript-environment-requirements.html
 ---
 
-React 16 depends on the collection types [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) and [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set). If you support older browsers and devices which may not yet provide these natively (e.g. IE < 11) or which have non-compliant implementations (e.g. IE 11), consider including a global polyfill in your bundled application, such as [core-js](https://github.com/zloirock/core-js) or [babel-polyfill](https://babeljs.io/docs/usage/polyfill/).
+React 16 dipende dai tipi di collezione [Map](https://developer.mozilla.org/it/docs/Web/JavaScript/Reference/Global_Objects/Map) e [Set](https://developer.mozilla.org/it/docs/Web/JavaScript/Reference/Global_Objects/Set). Se supporti browsers e dispositivi che non offrono tali tipi in modo nativo (ad esempio IE < 11) oppure nel caso di implementazioni non conformi (ad esempio: IE 11), consudera l'inclusione di un [polyfill](https://it.wikipedia.org/wiki/Polyfill) globale nel tuo bundle dell'applicazione, quale [core-js](https://github.com/zloirock/core-js) o [babel-polyfill](https://babeljs.io/docs/usage/polyfill/).
 
-A polyfilled environment for React 16 using core-js to support older browsers might look like:
+Un ambiente con polyfill per React 16 utilizzando core-js per supportare browser più vecchi dovrebbe essere così:
 
 ```js
 import 'core-js/es6/map';
@@ -18,13 +18,13 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 
 ReactDOM.render(
-  <h1>Hello, world!</h1>,
+  <h1>Ciao Mondo!</h1>,
   document.getElementById('root')
 );
 ```
 
-React also depends on `requestAnimationFrame` (even in test environments).  
-You can use the [raf](https://www.npmjs.com/package/raf) package to shim `requestAnimationFrame`:
+React dipende inoltre da `requestAnimationFrame` (anche negli ambienti di test).  
+Puoi usare il pacchetto [raf](https://www.npmjs.com/package/raf) come shim (alternativa avente le stesse API) per `requestAnimationFrame`:
 
 ```js
 import 'raf/polyfill';